Develop Bugs

[Q] Need Assistance, I brick my Galaxy Nexus

Hi, I am afraid I brick my Galaxy Nexus (Rooted)
Cause:
I think I wrongly delete some system files in Clockworkmod.
Symptoms:
1. When the mobile is turn on, only shows 'Google' logo and the 'Unlock' logo, no responds then.
2. Press Volume + and - key, I can successfully enter recovery mode.
3.Press Volume - key, I can successfully enter Download mode.
4. I do not have any Stock Rom file (or other Rom file) in the mobile memory.
Urgently need your expertise and help.
Many Thanks
(I am not an expert, so would you mind teach me step by step if you got the solution)
Thanks!!!!

So you cannot boot the phone at all past the Google splash screen? LTE or GSM?
Or does the phone boot fine, but you just can't get into ClockworkMod Recovery?

cbs2002 said:
Hi, I am afraid I brick my Galaxy Nexus (Rooted)
Cause:
I think I wrongly delete some system files in Clockworkmod.
Symptoms:
1. When the mobile is turn on, only shows 'Google' logo and the 'Unlock' logo, no responds then.
2. Press Volume + and - key, I can successfully enter recovery mode.
3.Press Volume - key, I can successfully enter Download mode.
4. I do not have any Stock Rom file (or other Rom file) in the mobile memory.
Urgently need your expertise and help.
Many Thanks
(I am not an expert, so would you mind teach me step by step if you got the solution)
Thanks!!!!
Click to expand...
Click to collapse
The key piece of information for your symptom is in this line:
1. When the mobile is turn on, only shows 'Google' logo and the 'Unlock' logo, no responds then.
The other lines do help provide background as to the other modes such as recovery and download working properly, which indicates the issue is not *serious*.
The symptom you state, where the device does not boot past the boot logo, usually means the device is not able to boot the kernel or boot past the kernel. The boot logo appears while the kernel is being loaded on the device. Generally, after the boot logo and kernel finish loading a boot animation appears which indicates the kernel has usually handed off to the Android OS to continue booting.
My approach would be to load a completely stock ROM in order to restore a working kernel and ROM to the device. I generally perform this step as a baseline to get everything back in working order.
In many instances the ROM is dependent on the kernel. Your situation requires at least a kernel to be loaded and in order to prevent any further issues, it would be best to load a ROM dependent on the kernel being loaded.
A simple way would be to grab the stock factory images from Google's site and load those back onto the device.
Another simple way would be to grab a stock ROM and flash the .zip through CWM in recovery mode.
Hope that helps!

Since you're rooted I'm going to assume you have ADB and the necessary drivers installed.
1.) Download a ROM. It doesn't have to be stock, you can choose any of the ROMs from the development section for your device. Most of the ROMs are packaged with a kernel already.
2.) Save this ROM file to the same folder where you have ADB installed.
3.) Boot your phone into CWM recovery and plug it into your computer.
4.) Use ADB to push the ROM zip file to your phone (/data/media). For example:
Code:
c:\gnex\>adb push rom.zip /data/media/rom.zip
5.) Use CWM to wipe data, cache, and davlik-cache
6.) Install zip from sdcard and flash the rom.zip.

RMarkwald said:
So you cannot boot the phone at all past the Google splash screen? LTE or GSM?
Or does the phone boot fine, but you just can't get into ClockworkMod Recovery?
Click to expand...
Click to collapse
1. I am using GSM
2. Whenever I turn on my mobile, the 'Google' and 'Unlock' logo appears and then freeze, with no more respond at all
* I definitely mess up some system files, but don't know how to restore it because my PC do not recognize my mobile.
Thanks

I am seeing more and more of these threads about "bricked" nexus's is this an issue with how new the phone is or people not following instructions properly as they are too eager to root their phones?
All else fails flash back to stock and count yourself lucky.

To silow,
Thanks for your advice, but fail
1. I put adb.exe, adbwinapi.dll and fastboot.exe (3 files) under my PC C drive (i.e. C
2. I also put a stock Rom (rename as rom.zip) under C drive (i.e. C
3. Boot phone into CWM recovery and plug it into computer.
4. Use cmd command and type c:\gnex\>adb push rom.zip /data/media/rom.zip
5. It fails , It say "Access Denied" (in Chinese, but I translate it into English here)
6. How do I use ADB (it is a ADB.exe file, When I double click it, it only flash up a few page very fast and nothing happen)
Please assist!

To Joeykrim,
I agree that
"Another simple way would be to grab a stock ROM and flash the .zip through CWM in recovery mode."
But how? (according to my symptoms)

The command I gave you was just an example. I didn't spell out the exact details because I thought that you would know how to do it considering you rooted the phone.
If you put the adb.exe and AdbWinApi.dll file in your C: drive, make sure you copy the ROM file to your C: drive too. In the follow example I'm going to use "ROM.zip" but use the name of the ROM file that you downloaded. Also I am assuming you are on Windows XP.
1.) Boot your phone into CWM recovery and then plug it in.
2.) Go to your Start Menu and choose Run. Then type in "cmd" without quotes and hit enter to open a command prompt.
3.) Enter:
Code:
cd c:\
4.) Enter the following to make sure ADB can see your phone:
Code:
adb devices
You should see something similiar to this to confirm ADB can see your device:
List of devices attached
019B756F0C018012 device
5.) Enter the following command to copy the ROM file to your phone. Remember to replace ROM.zip with whatever the name of the ROM file is:
Code:
adb push ROM.zip /data/media/ROM.zip
6.) Use CWM to wipe data, cache, and davlik-cache
7.) Install zip from sdcard and flash the rom.zip.

To Silow,
You have been very helpful, but I fail.
"You should see something similiar to this to confirm ADB can see your device:
List of devices attached"
There is NO device number shown after the phrase 'List of devices attached'
To recap:
a) Phone is already plugged in my PC, under the Clockworkmod Recovery 5.5.0.2
b) adb.exe and AdbWinApi.dll file are under C: drive directly
c) Also type cmd in 'Run', a black Dos window shown C:\windows\system32\cmd.exe
d) c:\>adb devices
List of devices attached
(But no device number show up, it cannot recognize my mobile)
Pls don't give up on me!
: )

you can't use adb from CWM, you need to enter the bootloader, then try adb or fastboot (edit: wrong!)

Sounds like your ADB USB drivers are not correctly installed. While the phone is under CWM, when you plug it in is your computer attempting to install drivers for a new device?
Download these bare ADB Interface drivers.ADB USB Drivers
Go into Device Manager on your computer and check the device list for any unknown devices or "?" devices. If you need to update those drivers by pointing them to the drivers you downloaded and extracted from that link above.
When the ADB Interface drivers are correctly installed you should see Android Phone listed under under your Device Manager when it's plugged in with CWM recovery loaded.
---------- Post added at 02:36 PM ---------- Previous post was at 02:35 PM ----------
cancerouspete said:
you can't use adb from CWM, you need to enter the bootloader, then try adb or fastboot
Click to expand...
Click to collapse
You CAN use ADB with CWM. That's one of the reasons why CWM is so awesome.

silow said:
You CAN use ADB with CWM. That's one of the reasons why CWM is so awesome.
Click to expand...
Click to collapse
edit: i did appear to have one missing driver, my mistake. it was listed in device manager as "unknown - full"
its funny cause i never had to use adb from cwm before, never noticed

cbs2002 said:
d) c:\>adb devices
List of devices attached
(But no device number show up, it cannot recognize my mobile)
Click to expand...
Click to collapse
This symptom generally occurs from not having loaded the drivers for the hardware. As with the majority of hardware devices when being connected to a Windows machine, the drivers need to be loaded. Sometimes these are automatically loaded and other times they have to be manual loaded.
As an alternative and for future reference, the android-sdk package contains general USB drives which usually work for Google Nexus devices.
Generally, as this providers a *cleaner* install, best practice as recommended by Google is to download the whole android-sdk .zip and then from the installer download/install the pieces needed, such as platform-tools (containing adb) and USB drivers as opposed to extracting out the adb.exe and .dll file and installing manually.
cancerouspete said:
you can't use adb from CWM, you need to enter the bootloader, then try adb or fastboot
Click to expand...
Click to collapse
silow said:
You CAN use ADB with CWM. That's one of the reasons why CWM is so awesome.
Click to expand...
Click to collapse
Agreed. To add greater clarification so there is no confusion: adb can't be used from the bootloader.
The /sbin/adbd daemon on the device is only loaded while in normal android boot mode or in recovery mode as called by the init.rc (or on some older devices, recovery.rc) file in the boot process.
Bootloader mode will only work with fastboot while it is in fastboot usb mode.
On some devices, the bootloader has a separate menu for fastboot and on other devices, the fastboot mode is directly entered when entering the bootloader.
Hope that helps clarify!

To silow (and all other helpers)
1. I fail
2. The ADB USB drivers in my PC should be fine as in Device Manager , I can see Android Phone with Android Composite ADB Interface. (No exclamation mark)
3. On the other hand, whenever I plug my mobile into PC, I can see "Unknown-Full"
4. In DOS, when I first type "adb devices" it shows
* daemon not running. starting it now on port 5037*
*daemon started successfully *
List of devices attached
(but NO device number shown!)
5. When I enter adb devices second time, it shows
List of devices attached (No device number shown)
Thank you so much , but it is Hong Kong time (my place) at 0511 am , I didn't sleep all night and I am very tired.
If you don't mind (especially big helper Silow), please give me email so that I capture screen picture and show you in detail (hope it may help)
my email is
[email protected]
I need to sleep now, I will check my email and see you guys or come back this Forum later (several hours later, as I really need some sleep right now)
Pls don't give up on me as this is an expensive mobile. I think the hardware is fine, just need to figure out a way to unbrick it.
Thanks, and see you!

What you need to do is right click on "Unknown-Full" and click on "Update Driver...". Then choose "Install from a list or specific location". Make sure "Search for the best driver in these locations." is checked and "Include this location in the search:" is check. Click on the Browse button and browse to where you extracted the driver files from the link I posted above. Click Next and this should install the correct drivers for you. Afterwards try "adb devices" again to see if ADB now reconizes your device.

To Silow,
Fail.
1. Already installed the drivers you gave me (and there is no 'Exclamation' Mark) in Device manager
2. Situation is the same , Cannot recognize my mobile (i.e. no Device No. after entering adb devices)
3. "List of devices attached" shown in DOS video but without any number.
No other method?
My mobile is really 'bricked' to death?

To Silow and all,
Something important
1. When choose 'install zip from sd card' under CWM, a list of old folder names remains
(e..g gameloft, DCIM, Pictures, etc). That means almost all old files, folders are STILL in my mobile!
2. I have already use the funcion 'Wipe data/factory reset', 'wipe cache partition', ' Wipe Dalvik Cache'
Perhaps my CWM has problem?

What happens when you update drivers for Unknown-Full?
Boot into fastboot and see if your computer recognizes the phone by checking device manager. The key here is to get your computer to see the phone either in fastboot or CWM.
Perhaps try another cable, USB port, or new computer.
The goal is to get Android Phone ADB Composite Interface to show up in device manager either in Fastboot or CWM. Without that done you cannot use Fastboot to flash nor ADB to push a zip file to the phone.
Sent from my Galaxy Nexus using XDA App

root for htc desire vc

It is 100% worked for me. HTC Desire VC ics rom
First of all.....unlock bootloader with htcdeveloper webside.
download this package..h_t_t_p_s://hotfile.com/dl/167408315/e492864/HTC_desire_VC_root.rar.html
run the recovery bat file...while connecting the phone in fastboot usb mode.
and then enter into recovery mode and install root.zip.
I have found this recovery file from one of the china website and root.zip is modified by myself..
It is worked for me..
sorry for my English.....

How to unlock bootloader for Desire vc ? How to switch S-ON to S-OFF for Desire vc? Help me.

Problems rooting
Hey. I've been trying to root my phone. But I even haven't been able to unlock the bootloader. The fastboot just gets stuck at waiting for device and does not proceed. I have downloaded and installed the latest USB drivers from Google's Android SDK, but still fastboot does not list my device. Any ideas what might be causing the problem?

Prompt please recovery from your archive in English?
Thanks.

r3ed said:
Hey. I've been trying to root my phone. But I even haven't been able to unlock the bootloader. The fastboot just gets stuck at waiting for device and does not proceed. I have downloaded and installed the latest USB drivers from Google's Android SDK, but still fastboot does not list my device. Any ideas what might be causing the problem?
Click to expand...
Click to collapse
>> I had the sample problem but i installed the HTC Sync Manager and then it worked.
It seems that the USB drivers of the device are not in the SDK from Google but in HTC's software.
i didn't understand how to "run the recovery bat file...while connecting the phone in fastboot usb mode." or "run bat file from desire vc recovery to install recovery.(phone in fastboot mode)"
EDIT: I've successfully rooted my phone!
Here is what you have to do:
1. Unlock bootloader (following htcdeveloper's instructions) - It took me sometime and i got stuck with the "waiting for device" for a while but then i installed HTC Sync Manager and i could finish that 1st step successfully. (When i go to the bootloaed i can see "Unlocked")
2. Copy the file "recovery.bat" (which was a chinese file "点我运行.bat" so i had to rename into "recovery.bat") at the root of the internal memory and i also put the folder "files" (which was with it from the .rar i downloaded) including: adb.exe / AdbWinApi.dll / AdbWinUsbApi.dll / fastboot.exe / recovery.img
(i'm not sure that is useful but i did it)
3. Copy the file "root.zip" at the root of the SD Card BUT rename it "update.zip"
4. Selected the "debugging mode" and "disk drive" as choice per default when i plug the USB cable
(i'm not sure that is useful but i did it)
5. I restarted the device and go to the bootloader. (Pressing both "Power button" + "Volume -")
6. The menu is : Hboot / Fastboot / Recovery / Factory reset / Simlock
Choose "Fastboot" and plug the USB cable ("Fastboot" became "Fastboot USB")
From your computer, launch "recovery.bat" file, a window will appear, press "Enter" and wait a few seconds.
7.a. On your phone (you should have now a menu in chinese), select to the 2nd line (using the volume buttons) and press you power button
b. Select the line where you can see the words "SD" and "update.zip" between the chinese caracters and press the power button.
c. Wait a few seconds, you should see some messages and then confirmation of the root.
8. Your phone is rooted, you can reboot and enjoy
Press Thanks if it worked for you!

problem in root
morn_06 said:
>> I had the sample problem but i installed the HTC Sync Manager and then it worked.
It seems that the USB drivers of the device are not in the SDK from Google but in HTC's software.
i didn't understand how to "run the recovery bat file...while connecting the phone in fastboot usb mode." or "run bat file from desire vc recovery to install recovery.(phone in fastboot mode)"
EDIT: I've successfully rooted my phone!
Here is what you have to do:
1. Unlock bootloader (following htcdeveloper's instructions) - It took me sometime and i got stuck with the "waiting for device" for a while but then i installed HTC Sync Manager and i could finish that 1st step successfully. (When i go to the bootloaed i can see "Unlocked")
2. Copy the file "recovery.bat" (which was a chinese file "点我运行.bat" so i had to rename into "recovery.bat") at the root of the internal memory and i also put the folder "files" (which was with it from the .rar i downloaded) including: adb.exe / AdbWinApi.dll / AdbWinUsbApi.dll / fastboot.exe / recovery.img
(i'm not sure that is useful but i did it)
3. Copy the file "root.zip" at the root of the SD Card BUT rename it "update.zip"
4. Selected the "debugging mode" and "disk drive" as choice per default when i plug the USB cable
(i'm not sure that is useful but i did it)
5. I restarted the device and go to the bootloader. (Pressing both "Power button" + "Volume -")
6. The menu is : Hboot / Fastboot / Recovery / Factory reset / Simlock
Choose "Fastboot" and plug the USB cable ("Fastboot" became "Fastboot USB")
From your computer, launch "recovery.bat" file, a window will appear, press "Enter" and wait a few seconds.
my problem is here only.after i pressed enter .i am not getting any chinese menu on my phone.please help
Click to expand...
Click to collapse

Hi,
I followed the instructions
But now when i'm started my phone I always get the menu like I'm starting my phone in fastbook mode... It won't restart normally..
Help please..

HELP !! trying to root my phone since three days
am able to only login to fastboot mode can proceed after that please help

Htc desire vc rooting helo
nikhilalobo said:
am able to only login to fastboot mode can proceed after that please help
Click to expand...
Click to collapse
waiting for a response plese help guys

can anyone provide me the HTC_desire_VC_root.rar ? i think hotfile alraedy close.. thanks!!

htt p:/ /w w w. 4shared.c o m /ra r/1 n 4-v s 0 Z/ HTC_desire_VC_root.h t m

Password Protected
nemran said:
htt p:/ /w w w. 4shared.c o m /ra r/1 n 4-v s 0 Z/ HTC_desire_VC_root.h t m
Click to expand...
Click to collapse
The link you have provided contains password protected RAR file please provide password...

Can anyone please tell me how to unlock the bootloader?
Please give the instruction to unlock it!!

[Q] Nexus 7 (2013) no operating system, No ADB. Am I boned??

I have a Nexus 32gb 2013 model that I've rooted with Wug's Nexus root toolkit v. 2.04. Everything was all find and dandy when I tried to update to Timer's Rom (not his fault) and I somehow deleted the operating system. The Nexus just shows the "Google" logo with a unlocked logo beneath and nothing happens. I did do a backup when I originally unlocked and rooted the Nexus but when I tried to install the backup, it does nothing. I already tried the DeVeiw thing and it did nothing. Actually it did help my PC recognize my phone again. To make it worse, I tried to install something to the Nexus but the computer won't recognize the Nexus. Neither will it load anything from an OTG cable. I took it to some place in town and they told me although the Nexus charges without any issues, the port might be messed up but I think this was his way of saying he has no idea what's up. Any ideas would be greatly appreciated. P.S. I still have access to TRWP (V. 2.8.4) and under "Restore" I do have a backup in there named cm_flo_userdebug 4.3.1 JLS361 blablabla. I already tried to install that with no luck. Am I boned? Any ideas would be greatly appreciated.

Does your computer see it when it's in fastboot? If so, flash a factory image (with fastboot) and start over.
And don't use toolkits.

No. Sadly it does nothing when I plug it in.

Does your computer recognize it while in bootloader? When in recovery, do you mount /system?

It does nothing when I plug it in. Not sure what you mean by me mounting the system.

1. Try shutting down the tablet all the way (screen black and fully off).
2. Then, hold down the power and volume down button. You should arrive to the "Fastboot" menu. While there, you should flash a recovery. Get TWRP for your device (really nice sideload).
3. Run a fastboot to flash a recovery so you can install an OS, like so:
Code:
fastboot flash openrecovery-twrp-2.8.5.0-flo.img
4. Reboot after installing TWRP. Hold power and volume down again.
5. Use your volume rocker to select "Recovery Mode" and press the power button. TWRP should start up.
6. Go into "Advanced" and select "ADB Sideload".
7. Sideload a ROM to your device by using:
Code:
adb sideload cyanogenmod.zip
Do GAPPS now if you need to.
8. Reboot, clear caches, and get back online.
---
If ADB refuses to sideload, make sure you've installed the proper ADB drivers for the device.

pacificfils said:
1. Try shutting down the tablet all the way (screen black and fully off).
2. Then, hold down the power and volume down button. You should arrive to the "Fastboot" menu. While there, you should flash a recovery. Get TWRP for your device (really nice sideload).
3. Run a fastboot to flash a recovery so you can install an OS, like so:
Code:
fastboot flash openrecovery-twrp-2.8.5.0-flo.img
4. Reboot after installing TWRP. Hold power and volume down again.
5. Use your volume rocker to select "Recovery Mode" and press the power button. TWRP should start up.
6. Go into "Advanced" and select "ADB Sideload".
7. Sideload a ROM to your device by using:
Code:
adb sideload cyanogenmod.zip
Do GAPPS now if you need to.
8. Reboot, clear caches, and get back online.
---
If ADB refuses to sideload, make sure you've installed the proper ADB drivers for the device.
Click to expand...
Click to collapse
I tried doing this but there is no way for me to side load anything because the PC wont recognize it. I think I am boned. I seriously wondering if there is something wrong with the USB connection even though it charges, I cant seem to get the PC to recognize it. The Nexus goes into TWRP but it wont recognize an OTG cable. When I connect it and try to select it, it just doesn't register. I wonder if I need to changed the USB board?Any other ideas before I do that? P.S. thanks for any help guys, I really appreciate any input.

[BIG PROBLEM] Zenfone 2 Reboots on Uninstall

Hello, I will explain everything in this video.
Video Link on YouTube : https://www.youtube.com/watch?v=jXS3UT4xOn4
And is there a way to fully flash this phone? and make it fully CN version.
And I also need a way to update my firmware, this phone is still running 2.13.

Help, anyone?

Hello, I just saw your video, just flash CN version firmware it's like 1.10 GB through adb sideload from PC. Maybe your problem it's just a software problem. Give a try. If you need help just reply, I'll post full detailed written tutorial here with all the cmd codes.

Akashami03 said:
Hello, I just saw your video, just flash CN version firmware it's like 1.10 GB through adb sideload from PC. Maybe your problem it's just a software problem. Give a try. If you need help just reply, I'll post full detailed written tutorial here with all the cmd codes.
Click to expand...
Click to collapse
Hi, thank you for your kind reply. Could you please provide me with the link of the latest CN Firmware along with a tutorial on how to flash my device. Thank you so much!

http://forum.xda-developers.com/showthread.php?p=61687943
There's stock firmware for your phone. Flash any firmware ending in CN for your phone

ClarnTV said:
Hi, thank you for your kind reply. Could you please provide me with the link of the latest CN Firmware along with a tutorial on how to flash my device. Thank you so much!
Click to expand...
Click to collapse
full Frimware but not the latest, You can update later Via taking OTA if your problem solved : V2.19.40.20 CN ( i get the link from here )
1. First install the Asus drives and ADB on PC ( i get below link from here )
USB Drivers:
Asus USB Drivers V2.0Driver
Troubleshooting Guide
2. Make sure USB Debugging is checked on.
3. place the frimware file inside the folder of where ADB is placed.
4. Manually go to recovery by shutdown the phone, then hold power + vol up until vibrate, after the vibrate take finger from power button and contiune hold vol up untill phone again restate. the phone now restart into revovery where the top rectangle box options change when you press vol up and down. get the recovery option and press power. now you see error android logo. then hold power and press volume up, u ill see the recovery settings.
5. do wipe/factory reset and wipe cashe
6. after that connet phone to pc.
7. open the ADB folder the you put frimware. hold shift button and press right click. click open command promt here.
8. type " adb devices " for just checking Command promt work or not with phone.
9. type " fastboot " ( here also nothing will happen on the phone )
10. Now in your phone using yoyr vul key and power key select adb sideload on the list of settings on the phone.
11. now in command promt type " adb sideload file.zip " ( file is the name of the file name, if file name is asdfgh.zip then " adb sideload asdfgh.zip " )
12. its takes time to flash then its reboots to phone like for the fist time.
13. after flash take OTA updates.

Akashami03 said:
full Frimware but not the latest, You can update later Via taking OTA if your problem solved : V2.19.40.20 CN ( i get the link from here )
1. First install the Asus drives and ADB on PC ( i get below link from here )
USB Drivers:
Asus USB Drivers V2.0Driver
Troubleshooting Guide
2. Make sure USB Debugging is checked on.
3. place the frimware file inside the folder of where ADB is placed.
4. Manually go to recovery by shutdown the phone, then hold power + vol up until vibrate, after the vibrate take finger from power button and contiune hold vol up untill phone again restate. the phone now restart into revovery where the top rectangle box options change when you press vol up and down. get the recovery option and press power. now you see error android logo. then hold power and press volume up, u ill see the recovery settings.
5. do wipe/factory reset and wipe cashe
6. after that connet phone to pc.
7. open the ADB folder the you put frimware. hold shift button and press right click. click open command promt here.
8. type " adb devices " for just checking Command promt work or not with phone.
9. type " fastboot " ( here also nothing will happen on the phone )
10. Now in your phone using yoyr vul key and power key select adb sideload on the list of settings on the phone.
11. now in command promt type " adb sideload file.zip " ( file is the name of the file name, if file name is asdfgh.zip then " adb sideload asdfgh.zip " )
12. its takes time to flash then its reboots to phone like for the fist time.
13. after flash take OTA updates.
Click to expand...
Click to collapse
Hi, thank you so much for all this Akashami. I'm very thankful, I really appreciate your help!
However, as I said I'm still new to this, I'm stuck in step 7. Where should I put the firmware? And I still didn't understand what to do and how to open command promt using the shif and right click. Could you please send me a picture for the 7th step.

Akashami03 said:
full Frimware but not the latest, You can update later Via taking OTA if your problem solved : V2.19.40.20 CN ( i get the link from here )
1. First install the Asus drives and ADB on PC ( i get below link from here )
USB Drivers:
Asus USB Drivers V2.0Driver
Troubleshooting Guide
2. Make sure USB Debugging is checked on.
3. place the frimware file inside the folder of where ADB is placed.
4. Manually go to recovery by shutdown the phone, then hold power + vol up until vibrate, after the vibrate take finger from power button and contiune hold vol up untill phone again restate. the phone now restart into revovery where the top rectangle box options change when you press vol up and down. get the recovery option and press power. now you see error android logo. then hold power and press volume up, u ill see the recovery settings.
5. do wipe/factory reset and wipe cashe
6. after that connet phone to pc.
7. open the ADB folder the you put frimware. hold shift button and press right click. click open command promt here.
8. type " adb devices " for just checking Command promt work or not with phone.
9. type " fastboot " ( here also nothing will happen on the phone )
10. Now in your phone using yoyr vul key and power key select adb sideload on the list of settings on the phone.
11. now in command promt type " adb sideload file.zip " ( file is the name of the file name, if file name is asdfgh.zip then " adb sideload asdfgh.zip " )
12. its takes time to flash then its reboots to phone like for the fist time.
13. after flash take OTA updates.
Click to expand...
Click to collapse
Another question where is the ADB Folder?
I've installed all the drivers, and I have download the firmware. Should I just open CMD.exe and type adb devices?

Akashami03 said:
11. now in command promt type " adb sideload file.zip " ( file is the name of the file name, if file name is asdfgh.zip then " adb sideload asdfgh.zip " )
.
Click to expand...
Click to collapse
It says :
loading "rom.zip"
* Cannot read "rom.zip *
And yes I have renamed it to rom.

ClarnTV said:
It says :
loading "rom.zip"
* Cannot read "rom.zip *
And yes I have renamed it to rom.
Click to expand...
Click to collapse
Sorry for late reply, if you still need help sent mess in hangouts, I'll help you in live chat. [email protected]

Redmi 7 Unlock Bootloader, Root, TWRP, & Changing Network bands

Prereqs
1. Download zip files & extract
2. Place adb drivers & mi unlock tool in c:/ directory
3. Place all files onto sd card since you are going to wipe your phone if not just download files onto phone twice
Unlocking Bootloader!
*backup your data, it wipes it all off!!!*
1. Go to settings, about phone, tap MIUI version several times until device says you are now a developer
2. Go back to settings, mi account, sign in. *YOU MUST REGISTER YOUR PHONE NUMBER AND EMAIL OR IT WON'T WORK*
3. Go to settings, additional settings, developer options, enable OEM unlocking and usb debugging, then click on Mi Unlock status.
4. Agree to you info being shared, and click on add account. You will need to disable wifi as it only lets you link with data.
5. Extract mi unlock tool via downloaded zip or go to unlock.update.miui.com Zip file is version 3.3.525.23 since the current
zip from the site didn't work. If you are having trouble, unlock.update.miui.com has a FAQ that can help you.
6. Run the MI Unlock application, but make sure you right click and open as administrator.
7. Agree, log in with the same account as you linked on your phone.
8. Hold power and volume down button on the phone until you see fastboot on screen. Plug in the phone and wait to see your phone register on the computer. If it won't register, go to device manager and right click device, and click on update drivers. Or, before
putting phone into fastboot mode, plug into computer for the computer to find drivers.
9. Click unlock on screen several times, and watch the device unlock. If the program says to wait 24,360,1000 hours,
wait that amount of time, and redo steps. To get out of fastboot mode, hold power until it reboots.
10. After software says device is unlocked, reboot and reset up information. Your bootloader is now unlocked.
11. After setup, do steps 1-3 again.
Flash TWRP
1. Reboot device into fastboot mode (power and volume down)
2. Place TWRP.img into universal adb devices folder.
3. Plug in device into computer.
4. Look up/find command prompt on computer. Right click, and open command promp as an administratior.
5. Type cd *directory of file* ex: cd C:\Users\Josh xD\Desktop\Unlock Bootloader, root, & change bands\Universal Adb Driver
You can find the directory from file manager.
6. Type fastboot devices and press enter. It should say fastboot with a hex value identifying your device, follow step 8 from
unlocking bootloader to make sure drivers are in place.
7. Type fastboot flash recovery REDMI7.img
8. Command prompt should say successful.
9. Next, type fastboot reboot.
10. To get into recovery, hold power and volume up.
11. Follow TWRP instructions, you now have twrp. If in chinese, go to the right row, third button down, click on globe, and
change to english.
12. Reboot phone
12.1 If your device doesn't have wifi/celluar after recovery:
Boot into twrp (power and volume up)
Click Install, Click on Wifi not working zip, and flash that.
Root
*I chose magisk since you can hide root from apps, but if you are classic and want to use supersu go right ahead*
1. Boot into TWRP (volume up & power)
2. Click install, click magisk.zip (or supersu.zip)
3. Flash and reboot then click on magisk in app drawer and follow instructions.
Band Change
1. Go to TWRP, backup, click on everything, and backup device just incase of error
2. Download LTE band calculator and click on bands you want. (go on google, look up what your carrier uses as bands and
select those. I did verizon and tmobile with also the defult bands redmi has so my hex # is : 2070174767327)
3. Go to command prompt via steps 4-5 on catagory flash TWRP
4. Type adb devices to make sure device is shown. Your phone must be rooted so make sure you follow Root catagory.
5. Type adb shell
6. Type su
7. Type setprop su setprop persist.usb.eng 1 ( if that command is invalid do command setprop sys.usb.config diag,adb)
8. Go to device manager and find device. Click on ports and find qualcomm device. If you can't find it, right click,
update drivers, and mannually install from HTC zip.
9. Open QPST and leave running.
10. Open QXDM, click options, communicatons, and make sure device is on COM
11. Click on view dropbar, and scroll to find NV Browser.
12. Click LTE and click on first value.
13. Click on read, and paste in your code value. BEFORE YOU DO THAT COPY THE CODE THAT IS ALREADY IN THE PHONE SO YOU CAN REVERT AT ANYTIME!!!
14. Click write and reboot device.
15. Close out of windows and reboot
16. Go back to the terminal and type adb shell
17. Type su
18. Type su setprop persist.usb.eng 0 (or setprop sys.usb.config mtp,adb)
19. To revert, redo all steps but paste in your default value you copied before you changed
IF YOU ARE STUCK IN A BOOTLOOP RESTORE BACKUP FROM TWRP (VOLUME UP AND POWER, RESTORE)
Bricked phone?
1. Open Mi Flash and install software
2. Plug in the device in fastboot mode (volume down and power)
3. Start-up program
3. When your device is noticed, click browse, click on firmware directory, and flash. (as of 4/29 only could find Chinese version)

Software
Here's a link for the software for all of this. I'll be making a video soon.
https://drive.google.com/file/d/1JS8a828svKZOlf6qoTPL5PLGpjwiZFRh/view?usp=sharing

Just got my Redmi 7 today and I am having trouble connecting the phone to PC using the USB port. Any link to the latest USB drivers?

superjit said:
Just got my Redmi 7 today and I am having trouble connecting the phone to PC using the USB port. Any link to the latest USB drivers?
Click to expand...
Click to collapse
Drivers should be in the unzipped miunlock zip or here
https://c.mi.com/thread-1625831-1-1.html

joshieboo said:
Drivers should be in the unzipped miunlock zip or here
https://c.mi.com/thread-1625831-1-1.html
Click to expand...
Click to collapse
Finally managed to get phone connected. The MI Unlock Tool files should be placed directly in C:\ otherwise phone will show as disconnected.
Now have to wait for 344 hours and try again

superjit said:
Finally managed to get phone connected. The MI Unlock Tool files should be placed directly in C:\ otherwise phone will show as disconnected.
Now have to wait for 344 hours and try again
Click to expand...
Click to collapse
The first sentence says to zip it in c:/ directory. & yup, I'm waiting too until May 7th to finally unlock it.

Can you post the source link please?

Mr147 said:
Can you post the source link please?
Click to expand...
Click to collapse
https://forum.xda-developers.com/redmi-7/development/redmi7-lr-team-twrp-3-3-0-redmi7-cn-t3924278
https://www.google.com/amp/s/www.xda-developers.com/remove-band-restrictions-qualcomm/amp/

Here are videos that show how to unlock the bootloader, install TWRP, and then gain root access. . .
https://www.youtube.com/watch?v=tYcJ1BSd0_I
https://www.youtube.com/watch?v=tZAWW_MQE7M
https://www.youtube.com/watch?v=V16d3UOolX0

My device is Hard bricked
Now what should i do???
Device Redmi Note 7.

c1w3xx said:
My device is Hard bricked
Now what should i do???
Device Redmi Note 7.
Click to expand...
Click to collapse
Go to note 7 forums:
https://forum.xda-developers.com/redmi-note-7

c1w3xx said:
My device is Hard bricked
Now what should i do???
Device Redmi Note 7.
Click to expand...
Click to collapse
This will help
- https://www.androidexplained.com/redmi-note-7-unbrick/

joshieboo said:
Prereqs
1. Download zip files & extract
2. Place adb drivers & mi unlock tool in c:/ directory
3. Place all files onto sd card since you are going to wipe your phone if not just download files onto phone twice
Unlocking Bootloader!
*backup your data, it wipes it all off!!!*
1. Go to settings, about phone, tap MIUI version several times until device says you are now a developer
2. Go back to settings, mi account, sign in. *YOU MUST REGISTER YOUR PHONE NUMBER AND EMAIL OR IT WON'T WORK*
3. Go to settings, additional settings, developer options, enable OEM unlocking and usb debugging, then click on Mi Unlock status.
4. Agree to you info being shared, and click on add account. You will need to disable wifi as it only lets you link with data.
5. Extract mi unlock tool via downloaded zip or go to unlock.update.miui.com Zip file is version 3.3.525.23 since the current
zip from the site didn't work. If you are having trouble, unlock.update.miui.com has a FAQ that can help you.
6. Run the MI Unlock application, but make sure you right click and open as administrator.
7. Agree, log in with the same account as you linked on your phone.
8. Hold power and volume down button on the phone until you see fastboot on screen. Plug in the phone and wait to see your phone register on the computer. If it won't register, go to device manager and right click device, and click on update drivers. Or, before
putting phone into fastboot mode, plug into computer for the computer to find drivers.
9. Click unlock on screen several times, and watch the device unlock. If the program says to wait 24,360,1000 hours,
wait that amount of time, and redo steps. To get out of fastboot mode, hold power until it reboots.
10. After software says device is unlocked, reboot and reset up information. Your bootloader is now unlocked.
11. After setup, do steps 1-3 again.
Flash TWRP
1. Reboot device into fastboot mode (power and volume down)
2. Place TWRP.img into universal adb devices folder.
3. Plug in device into computer.
4. Look up/find command prompt on computer. Right click, and open command promp as an administratior.
5. Type cd *directory of file* ex: cd C:\Users\Josh xD\Desktop\Unlock Bootloader, root, & change bands\Universal Adb Driver
You can find the directory from file manager.
6. Type fastboot devices and press enter. It should say fastboot with a hex value identifying your device, follow step 8 from
unlocking bootloader to make sure drivers are in place.
7. Type fastboot flash recovery REDMI7.img
8. Command prompt should say successful.
9. Next, type fastboot reboot.
10. To get into recovery, hold power and volume up.
11. Follow TWRP instructions, you now have twrp. If in chinese, go to the right row, third button down, click on globe, and
change to english.
12. Reboot phone
12.1 If your device doesn't have wifi/celluar after recovery:
Boot into twrp (power and volume up)
Click Install, Click on Wifi not working zip, and flash that.
Root
*I chose magisk since you can hide root from apps, but if you are classic and want to use supersu go right ahead*
1. Boot into TWRP (volume up & power)
2. Click install, click magisk.zip (or supersu.zip)
3. Flash and reboot then click on magisk in app drawer and follow instructions.
Band Change
1. Go to TWRP, backup, click on everything, and backup device just incase of error
2. Download LTE band calculator and click on bands you want. (go on google, look up what your carrier uses as bands and
select those. I did verizon and tmobile with also the defult bands redmi has so my hex # is : 2070174767327)
3. Go to command prompt via steps 4-5 on catagory flash TWRP
4. Type adb devices to make sure device is shown. Your phone must be rooted so make sure you follow Root catagory.
5. Type adb shell
6. Type su
7. Type setprop su setprop persist.usb.eng 1 ( if that command is invalid do command setprop sys.usb.config diag,adb)
8. Go to device manager and find device. Click on ports and find qualcomm device. If you can't find it, right click,
update drivers, and mannually install from HTC zip.
9. Open QPST and leave running.
10. Open QXDM, click options, communicatons, and make sure device is on COM
11. Click on view dropbar, and scroll to find NV Browser.
12. Click LTE and click on first value.
13. Click on read, and paste in your code value. BEFORE YOU DO THAT COPY THE CODE THAT IS ALREADY IN THE PHONE SO YOU CAN REVERT AT ANYTIME!!!
14. Click write and reboot device.
15. Close out of windows and reboot
16. Go back to the terminal and type adb shell
17. Type su
18. Type su setprop persist.usb.eng 0 (or setprop sys.usb.config mtp,adb)
19. To revert, redo all steps but paste in your default value you copied before you changed
IF YOU ARE STUCK IN A BOOTLOOP RESTORE BACKUP FROM TWRP (VOLUME UP AND POWER, RESTORE)
Bricked phone?
1. Open Mi Flash and install software
2. Plug in the device in fastboot mode (volume down and power)
3. Start-up program
3. When your device is noticed, click browse, click on firmware directory, and flash. (as of 4/29 only could find Chinese version)
Click to expand...
Click to collapse
Here's the link to the video, hope it helps visually
https://youtu.be/dXNwcv-jSS0

Is it possible to unlock the bootloader without losing user data ?
It is my main phone and i used it already for quite some time

thank u very much, wait for a long time ! yeah! its working!

Can't boot temporarily into TWRP
Pretty weird, but I when I try
Code:
fastboot boot twrp.img
I get this error: Fastboot error: Command Failed
My bootloader is unlocked

Did it all, no problems i had to wait 15 days for factory unlock, now i have full rooted phone no issues atm.

Can you please dump cat /sys/class/leds/lcd-backlight/max_brightness and cat /sys/class/backlight/panel0-backlight/max_brightness

Kernel sources for Redmi 7 [onc] released

@ joshieboo
how lock bootloader back ??? please reply thankxxxx